ELECTRICITY AND MAGNETISM - RESISTANCE - RESISTIVITY AND TEMPERATURE Order

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Coil in Liquid Nitrogen
# 5D20.10


Description: A coil of nickel wire is lowered into liquid nitrogen. The resistance of the coil is measured with a digital multimeter. It drops from around 3 ohms to 1.2 ohms. The digital multimeter is displayed on a television screen using the VideoFlex camera.

Parts: LN2, Nickel coil, digital multimeter, VideoFlex camera, television.

Quant. in Demo Room: 1

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 17-21 A copper coil in series with a battery and lamp is immersed in liquid nitrogen.
Sutton H-103 A lamp glows brighter when a series resistance coil is immersed in liquid air.

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